There is good reason to believe that we will not see Judas in heaven. Jesus spoke of His betrayer with these words:
The Son of Man goes as it is written of him, but woe to that man by whom the Son of Man is betrayed! It would have been better for that man if he had not been born.” Matthew 26:24 ESV
As @Paul A Clayton noted in this comment, John 17:12 is more emphatic:
None has been lost except the one doomed to destruction so that Scripture would be fulfilled. John 17:12b NIV
If Jesus said that it would have been better for Judas had he never been born, then it is hard to imagine that he is in heaven now. Since Jesus is omniscient, if Judas were to have another opportunity to respond to the gospel after his death--which I don't believe he did--then Jesus would have also known the outcome of that and would not have said what He did.
Judas did, however, feel remorse, but there is a significant, even eternal difference between remorse and repentance. He certainly could have repented of what he did and returned to Jesus, but it appears he felt remorse and probably shame. His suicide appears to be a result of that and not of biblical repentance.